ATSAMD51G18A-MF

Overview

The ATSAMD51G18A-MF is a 32-bit microcontroller from the Microchip SAM D51 family, featuring an ARM Cortex-M4F core with a floating-point unit. It operates at a maximum frequency of 120 MHz and includes 256 KB of in-system programmable flash memory and 128 KB of SRAM. The device provides 37 general-purpose I/O pins and supports a supply voltage range of 1.71 V to 3.63 V. Integrated peripherals include multiple communication interfaces such as USB, SPI, I2C, and UART, alongside analog converters including 24-channel 12-bit ADCs and two 12-bit DACs.

Feature Summary

• Integrated ARM Cortex-M4F processor with hardware floating-point unit for efficient signal processing
• Comprehensive connectivity suite supporting USB Full-Speed and various serial communication protocols
• High-resolution analog conversion capabilities with multiple 12-bit ADC channels and dual DAC outputs

Applications

• Industrial control systems requiring precise analog signal monitoring
• Consumer electronics utilizing USB connectivity for data transfer or power management
• Wearable devices benefiting from low-power operation and compact packaging

Procurement Notes

Verify the specific suffix 'MF' against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the QFN-48 configuration. Cross-reference silicon errata sheets for any known operational limitations relevant to your specific application environment before finalizing procurement.

Selection Notes

Select this component when a balance of processing performance and peripheral richness is required within a small form factor. The inclusion of a hardware FPU makes it suitable for applications involving mathematical computations or audio processing. Compare against the SAM D5x family alternatives if different pin counts or memory sizes better suit the design constraints.

Part Context

This part belongs to the SAM D51 series, designed for high-performance, low-power applications. It shares architectural similarities with the ATSAME51 but lacks automotive qualification. The series emphasizes energy efficiency while delivering robust processing power through its Cortex-M4F core, making it a versatile choice for modern embedded designs.

Replacement Considerations

ATSAMD51G18A-MUT serves as a tape-and-reel alternative within the same package family. For broader package options, consider the ATSAMD51J18A-AU in a TQFP format. Verify that any substitute maintains identical pinout and electrical characteristics to ensure seamless integration.